/* 全局样式 */
:root {
    --gradient-primary: linear-gradient(135deg, #2b2d42 0%, #1a1b2e 100%);
    --gradient-secondary: linear-gradient(135deg, #7209b7 0%, #3f37c9 100%);
    --gradient-text: linear-gradient(135deg, #4361ee 0%, #7209b7 100%);
    --gradient-banner: linear-gradient(90deg, #f72585 0%, #7209b7 100%);
    --primary-color: #4361ee;
    --secondary-color: #7209b7;
    --accent-color: #f72585;
    --dark-bg: #0a0b14;
    --card-bg: rgba(27, 28, 42, 0.7);
}

body {
    background: var(--dark-bg);
    color: #fff;
    font-family: 'Inter', sans-serif;
    min-height: 100vh;
}

/* 导航栏 */
.navbar {
    padding: 1.5rem 0;
    background: transparent;
    position: fixed;
    width: 100%;
    z-index: 1000;
    transition: all 0.3s ease;
}

.navbar.scrolled {
    background: rgba(10, 11, 20, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    padding: 1rem 0;
}

.navbar-brand {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.8rem;
    font-weight: 800;
}

.navbar-brand i {
    font-size: 2rem;
    background: var(--gradient-secondary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.navbar-brand span {
    background: var(--gradient-text);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.nav-link {
    color: rgba(255, 255, 255, 0.8) !important;
    transition: all 0.3s ease;
    position: relative;
    padding: 0.5rem 1rem !important;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 0;
    height: 2px;
    background: var(--gradient-secondary);
    transition: all 0.3s ease;
    transform: translateX(-50%);
}

.nav-link:hover::after,
.nav-link.active::after {
    width: 100%;
}

.nav-link:hover,
.nav-link.active {
    color: #fff !important;
}

/* Hero部分 */
.hero {
    position: relative;
    padding: 200px 0 150px;
    background: var(--dark-bg);
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at top right, rgba(67, 97, 238, 0.15), transparent 50%),
        radial-gradient(circle at bottom left, rgba(114, 9, 183, 0.15), transparent 50%),
        radial-gradient(circle at center, rgba(247, 37, 133, 0.1), transparent 50%);
    z-index: 0;
}

.hero-title {
    font-size: 5rem;
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 2rem;
    position: relative;
    z-index: 1;
}

.gradient-text {
    background: var(--gradient-text);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    font-weight: 900;
}

.hero-subtitle {
    font-size: 1.3rem;
    line-height: 1.6;
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: 3rem;
    position: relative;
    z-index: 1;
}

.hero-buttons .btn {
    padding: 1rem 2.5rem;
    font-weight: 600;
    border-radius: 12px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.btn-primary {
    background: var(--gradient-secondary);
    border: none;
    position: relative;
    overflow: hidden;
    transition: all 0.3s ease;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(74, 0, 224, 0.3);
}

.btn-outline-light {
    border: 2px solid rgba(255, 255, 255, 0.2);
    background: transparent;
    transition: all 0.3s ease;
}

.btn-outline-light:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.4);
    transform: translateY(-2px);
}

/* 入口选择 */
.entry-section {
    position: relative;
    z-index: 2;
    padding: 6rem 0;
    background: var(--dark-bg);
}

.entry-card {
    background: linear-gradient(145deg, 
        rgba(27, 28, 42, 0.8), 
        rgba(43, 45, 66, 0.8)
    );
    border: 1px solid rgba(67, 97, 238, 0.1);
    border-radius: 24px;
    padding: 3rem 2rem;
    text-align: center;
    transition: all 0.3s ease;
    backdrop-filter: blur(10px);
    height: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1.5rem;
}

.entry-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
    border-color: rgba(74, 0, 224, 0.3);
}

/* 入口图标样式 */
.entry-icon {
    width: 80px;
    height: 80px;
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1rem;
    background: var(--gradient-secondary);
    box-shadow: 0 10px 20px rgba(74, 0, 224, 0.2);
    position: relative;
}

.entry-icon::after {
    content: '';
    position: absolute;
    width: 100%;
    height: 100%;
    border-radius: 20px;
    background: inherit;
    filter: blur(20px);
    opacity: 0.5;
    z-index: -1;
}

.entry-icon i {
    font-size: 2.5rem;
    color: white;
}

.entry-card h3 {
    font-size: 1.5rem;
    font-weight: 600;
    color: #fff;
    margin: 0;
}

.entry-card p {
    color: rgba(255, 255, 255, 0.7);
    margin: 0;
    line-height: 1.6;
}

/* 入口按钮样式 */
.entry-card .btn {
    padding: 0.75rem 2rem;
    font-size: 1rem;
    font-weight: 500;
    border-radius: 12px;
    border: none;
    background: var(--gradient-secondary);
    color: white;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
    margin-top: auto;
}

.entry-card .btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(74, 0, 224, 0.3);
}

/* 为不同入口设置不同的渐变色 */
.entry-card:nth-child(1) .entry-icon {
    background: linear-gradient(135deg, #4361ee, #7209b7);
}

.entry-card:nth-child(2) .entry-icon {
    background: linear-gradient(135deg, #7209b7, #f72585);
}

.entry-card:nth-child(1) .btn {
    background: linear-gradient(135deg, #4361ee, #7209b7);
}

.entry-card:nth-child(2) .btn {
    background: linear-gradient(135deg, #7209b7, #f72585);
}

/* 添加背景光效 */
.entry-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 20% 50%, rgba(67, 97, 238, 0.15), transparent 50%),
        radial-gradient(circle at 80% 50%, rgba(114, 9, 183, 0.15), transparent 50%);
    z-index: -1;
}

/* 特性部分 */
.features {
    padding: 120px 0;
    background: linear-gradient(to bottom, 
        var(--dark-bg), 
        rgba(74, 0, 224, 0.05), 
        var(--dark-bg));
}

.feature-card {
    background: linear-gradient(145deg, 
        rgba(27, 28, 42, 0.8), 
        rgba(43, 45, 66, 0.8)
    );
    border: 1px solid rgba(67, 97, 238, 0.1);
    border-radius: 24px;
    padding: 2.5rem;
    height: 100%;
    transition: all 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
    border-color: rgba(74, 0, 224, 0.3);
}

.feature-icon {
    width: 80px;
    height: 80px;
    background: var(--gradient-secondary);
    border-radius: 20px;
    margin-bottom: 2rem;
    box-shadow: 0 10px 20px rgba(74, 0, 224, 0.2);
    display: flex;
    align-items: center;
    justify-content: center;
}

.feature-icon i {
    font-size: 2rem;
    color: #fff;
}

/* 修改其他部分的样式以保持一致性 */
.section-title {
    font-size: 3rem;
    font-weight: 800;
    margin-bottom: 1.5rem;
    background: var(--gradient-text);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.section-subtitle {
    font-size: 1.2rem;
    color: rgba(255, 255, 255, 0.8);
    max-width: 700px;
    margin: 0 auto 4rem;
    line-height: 1.6;
}

/* 页脚样式重写 */
.footer {
    background: var(--dark-bg);
    padding: 60px 0 20px;
    color: rgba(255, 255, 255, 0.8);
    border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.footer h5 {
    color: #fff;
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 1.2rem;
}

.footer p {
    font-size: 0.9rem;
    line-height: 1.6;
    opacity: 0.8;
}

.footer ul {
    margin: 0;
    padding: 0;
}

.footer ul li {
    margin-bottom: 0.8rem;
}

.footer ul li a {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    font-size: 0.9rem;
    transition: all 0.3s ease;
}

.footer ul li a:hover {
    color: var(--accent-color);
    text-decoration: none;
}

.footer .contact-info li {
    display: flex;
    align-items: center;
    gap: 8px;
}

.footer .contact-info i {
    color: var(--accent-color);
    font-size: 1.1rem;
}

.footer hr {
    margin: 40px 0 20px;
    border-color: rgba(255, 255, 255, 0.05);
}

.footer .copyright {
    text-align: center;
    font-size: 0.9rem;
    color: rgba(255, 255, 255, 0.6);
}

/* 顶部横幅 */
.top-banner {
    background: var(--gradient-banner);
    padding: 8px 0;
    color: #1a1a1a;
    font-size: 0.9rem;
    text-align: center;
}

.top-banner a {
    color: #1a1a1a;
    text-decoration: none;
    font-weight: 600;
}

.top-banner i {
    margin-right: 5px;
}

/* 动画效果 */
@keyframes float {
    0% {
        transform: translateY(0px);
    }
    50% {
        transform: translateY(-10px);
    }
    100% {
        transform: translateY(0px);
    }
}

.hero-image {
    animation: float 6s ease-in-out infinite;
}

/* 文字发光效果 */
.hero-title {
    text-shadow: 0 0 30px rgba(108, 99, 255, 0.2);
}

.gradient-text {
    position: relative;
}

.gradient-text::after {
    content: attr(data-text);
    position: absolute;
    left: 0;
    top: 0;
    z-index: -1;
    background: var(--gradient-text);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    filter: blur(15px);
    opacity: 0.5;
}

/* 按钮样式优化 */
.btn-outline-light {
    border: 2px solid rgba(255, 255, 255, 0.2);
    background: transparent;
    backdrop-filter: blur(10px);
}

.btn-outline-light:hover {
    border-color: var(--primary-color);
    color: var(--primary-color);
    background: rgba(0, 98, 255, 0.1);
}

/* 导航链接优化 */
.nav-link::after {
    background: var(--gradient-secondary);
}

/* 响应式调整 */
@media (max-width: 768px) {
    .hero-title {
        font-size: 2.5rem;
    }
    
    .entry-section {
        margin-top: 30px;
    }
}

/* 面试场景样式 */
.interview-scene {
    position: relative;
    width: 100%;
    height: 400px;
    background: linear-gradient(145deg, 
        rgba(27, 28, 42, 0.4), 
        rgba(43, 45, 66, 0.4)
    );
    border-radius: 24px;
    backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    overflow: hidden;
    padding: 30px;
}

.ai-interviewer {
    position: relative;
    display: flex;
    align-items: center;
    gap: 20px;
}

.ai-avatar {
    width: 60px;
    height: 60px;
    background: #6c2bd9;
    border-radius: 50%;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
}

.ai-avatar::before {
    content: '';
    position: absolute;
    width: 30px;
    height: 30px;
    background: url('../assets/ai-icon.svg') no-repeat center;
    background-size: contain;
}

.ai-pulse {
    width: 100px;
    height: 40px;
    background: linear-gradient(90deg, 
        rgba(108, 43, 217, 0.2) 0%,
        rgba(108, 43, 217, 0.4) 50%,
        rgba(108, 43, 217, 0.2) 100%
    );
    border-radius: 20px;
    animation: pulse 2s infinite;
}

.chat-bubbles {
    margin-top: 30px;
}

.bubble {
    max-width: 80%;
    padding: 15px 20px;
    border-radius: 16px;
    margin-bottom: 20px;
    font-size: 0.95rem;
    line-height: 1.5;
}

.ai-bubble {
    background: rgba(108, 43, 217, 0.2);
    border: 1px solid rgba(108, 43, 217, 0.3);
    color: #fff;
}

.user-bubble {
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    color: #fff;
    margin-left: auto;
}

@keyframes pulse {
    0% {
        opacity: 0.6;
        transform: scaleX(1);
    }
    50% {
        opacity: 1;
        transform: scaleX(1.1);
    }
    100% {
        opacity: 0.6;
        transform: scaleX(1);
    }
}

/* 添加浮动动画 */
.interview-scene {
    animation: float 6s ease-in-out infinite;
}

@keyframes float {
    0% {
        transform: translateY(0px);
    }
    50% {
        transform: translateY(-10px);
    }
    100% {
        transform: translateY(0px);
    }
}

/* 添加光效 */
.interview-scene::after {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(
        circle at center,
        rgba(108, 43, 217, 0.1) 0%,
        transparent 70%
    );
    animation: rotate 20s linear infinite;
}

@keyframes rotate {
    from {
        transform: rotate(0deg);
    }
    to {
        transform: rotate(360deg);
    }
}
  </rewritten_file>